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-rw-r--r--drivers/video/am200epd.c295
1 files changed, 0 insertions, 295 deletions
diff --git a/drivers/video/am200epd.c b/drivers/video/am200epd.c
deleted file mode 100644
index 0c35b8b0160..00000000000
--- a/drivers/video/am200epd.c
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * linux/drivers/video/am200epd.c -- Platform device for AM200 EPD kit
- *
- * Copyright (C) 2008, Jaya Kumar
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive for
- * more details.
- *
- * Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
- *
- * This work was made possible by help and equipment support from E-Ink
- * Corporation. http://support.eink.com/community
- *
- * This driver is written to be used with the Metronome display controller.
- * on the AM200 EPD prototype kit/development kit with an E-Ink 800x600
- * Vizplex EPD on a Gumstix board using the Lyre interface board.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/list.h>
-#include <linux/uaccess.h>
-#include <linux/irq.h>
-
-#include <video/metronomefb.h>
-
-#include <mach/pxa-regs.h>
-
-/* register offsets for gpio control */
-#define LED_GPIO_PIN 51
-#define STDBY_GPIO_PIN 48
-#define RST_GPIO_PIN 49
-#define RDY_GPIO_PIN 32
-#define ERR_GPIO_PIN 17
-#define PCBPWR_GPIO_PIN 16
-
-#define AF_SEL_GPIO_N 0x3
-#define GAFR0_U_OFFSET(pin) ((pin - 16) * 2)
-#define GAFR1_L_OFFSET(pin) ((pin - 32) * 2)
-#define GAFR1_U_OFFSET(pin) ((pin - 48) * 2)
-#define GPDR1_OFFSET(pin) (pin - 32)
-#define GPCR1_OFFSET(pin) (pin - 32)
-#define GPSR1_OFFSET(pin) (pin - 32)
-#define GPCR0_OFFSET(pin) (pin)
-#define GPSR0_OFFSET(pin) (pin)
-
-static void am200_set_gpio_output(int pin, int val)
-{
- u8 index;
-
- index = pin >> 4;
-
- switch (index) {
- case 1:
- if (val)
- GPSR0 |= (1 << GPSR0_OFFSET(pin));
- else
- GPCR0 |= (1 << GPCR0_OFFSET(pin));
- break;
- case 2:
- break;
- case 3:
- if (val)
- GPSR1 |= (1 << GPSR1_OFFSET(pin));
- else
- GPCR1 |= (1 << GPCR1_OFFSET(pin));
- break;
- default:
- printk(KERN_ERR "unimplemented\n");
- }
-}
-
-static void __devinit am200_init_gpio_pin(int pin, int dir)
-{
- u8 index;
- /* dir 0 is output, 1 is input
- - do 2 things here:
- - set gpio alternate function to standard gpio
- - set gpio direction to input or output */
-
- index = pin >> 4;
- switch (index) {
- case 1:
- GAFR0_U &= ~(AF_SEL_GPIO_N << GAFR0_U_OFFSET(pin));
-
- if (dir)
- GPDR0 &= ~(1 << pin);
- else
- GPDR0 |= (1 << pin);
- break;
- case 2:
- GAFR1_L &= ~(AF_SEL_GPIO_N << GAFR1_L_OFFSET(pin));
-
- if (dir)
- GPDR1 &= ~(1 << GPDR1_OFFSET(pin));
- else
- GPDR1 |= (1 << GPDR1_OFFSET(pin));
- break;
- case 3:
- GAFR1_U &= ~(AF_SEL_GPIO_N << GAFR1_U_OFFSET(pin));
-
- if (dir)
- GPDR1 &= ~(1 << GPDR1_OFFSET(pin));
- else
- GPDR1 |= (1 << GPDR1_OFFSET(pin));
- break;
- default:
- printk(KERN_ERR "unimplemented\n");
- }
-}
-
-static void am200_init_gpio_regs(struct metronomefb_par *par)
-{
- am200_init_gpio_pin(LED_GPIO_PIN, 0);
- am200_set_gpio_output(LED_GPIO_PIN, 0);
-
- am200_init_gpio_pin(STDBY_GPIO_PIN, 0);
- am200_set_gpio_output(STDBY_GPIO_PIN, 0);
-
- am200_init_gpio_pin(RST_GPIO_PIN, 0);
- am200_set_gpio_output(RST_GPIO_PIN, 0);
-
- am200_init_gpio_pin(RDY_GPIO_PIN, 1);
-
- am200_init_gpio_pin(ERR_GPIO_PIN, 1);
-
- am200_init_gpio_pin(PCBPWR_GPIO_PIN, 0);
- am200_set_gpio_output(PCBPWR_GPIO_PIN, 0);
-}
-
-static void am200_disable_lcd_controller(struct metronomefb_par *par)
-{
- LCSR = 0xffffffff; /* Clear LCD Status Register */
- LCCR0 |= LCCR0_DIS; /* Disable LCD Controller */
-
- /* we reset and just wait for things to settle */
- msleep(200);
-}
-
-static void am200_enable_lcd_controller(struct metronomefb_par *par)
-{
- LCSR = 0xffffffff;
- FDADR0 = par->metromem_desc_dma;
- LCCR0 |= LCCR0_ENB;
-}
-
-static void am200_init_lcdc_regs(struct metronomefb_par *par)
-{
- /* here we do:
- - disable the lcd controller
- - setup lcd control registers
- - setup dma descriptor
- - reenable lcd controller
- */
-
- /* disable the lcd controller */
- am200_disable_lcd_controller(par);
-
- /* setup lcd control registers */
- LCCR0 = LCCR0_LDM | LCCR0_SFM | LCCR0_IUM | LCCR0_EFM | LCCR0_PAS
- | LCCR0_QDM | LCCR0_BM | LCCR0_OUM;
-
- LCCR1 = (par->info->var.xres/2 - 1) /* pixels per line */
- | (27 << 10) /* hsync pulse width - 1 */
- | (33 << 16) /* eol pixel count */
- | (33 << 24); /* bol pixel count */
-
- LCCR2 = (par->info->var.yres - 1) /* lines per panel */
- | (24 << 10) /* vsync pulse width - 1 */
- | (2 << 16) /* eof pixel count */
- | (0 << 24); /* bof pixel count */
-
- LCCR3 = 2 /* pixel clock divisor */
- | (24 << 8) /* AC Bias pin freq */
- | LCCR3_16BPP /* BPP */
- | LCCR3_PCP; /* PCP falling edge */
-
-}
-
-static void am200_post_dma_setup(struct metronomefb_par *par)
-{
- par->metromem_desc->mFDADR0 = par->metromem_desc_dma;
- par->metromem_desc->mFSADR0 = par->metromem_dma;
- par->metromem_desc->mFIDR0 = 0;
- par->metromem_desc->mLDCMD0 = par->info->var.xres
- * par->info->var.yres;
- am200_enable_lcd_controller(par);
-}
-
-static void am200_free_irq(struct fb_info *info)
-{
- free_irq(IRQ_GPIO(RDY_GPIO_PIN), info);
-}
-
-static irqreturn_t am200_handle_irq(int irq, void *dev_id)
-{
- struct fb_info *info = dev_id;
- struct metronomefb_par *par = info->par;
-
- wake_up_interruptible(&par->waitq);
- return IRQ_HANDLED;
-}
-
-static int am200_setup_irq(struct fb_info *info)
-{
- int retval;
-
- retval = request_irq(IRQ_GPIO(RDY_GPIO_PIN), am200_handle_irq,
- IRQF_DISABLED, "AM200", info);
- if (retval) {
- printk(KERN_ERR "am200epd: request_irq failed: %d\n", retval);
- return retval;
- }
-
- return set_irq_type(IRQ_GPIO(RDY_GPIO_PIN), IRQ_TYPE_EDGE_FALLING);
-}
-
-static void am200_set_rst(struct metronomefb_par *par, int state)
-{
- am200_set_gpio_output(RST_GPIO_PIN, state);
-}
-
-static void am200_set_stdby(struct metronomefb_par *par, int state)
-{
- am200_set_gpio_output(STDBY_GPIO_PIN, state);
-}
-
-static int am200_wait_event(struct metronomefb_par *par)
-{
- return wait_event_timeout(par->waitq, (GPLR1 & 0x01), HZ);
-}
-
-static int am200_wait_event_intr(struct metronomefb_par *par)
-{
- return wait_event_interruptible_timeout(par->waitq, (GPLR1 & 0x01), HZ);
-}
-
-static struct metronome_board am200_board = {
- .owner = THIS_MODULE,
- .free_irq = am200_free_irq,
- .setup_irq = am200_setup_irq,
- .init_gpio_regs = am200_init_gpio_regs,
- .init_lcdc_regs = am200_init_lcdc_regs,
- .post_dma_setup = am200_post_dma_setup,
- .set_rst = am200_set_rst,
- .set_stdby = am200_set_stdby,
- .met_wait_event = am200_wait_event,
- .met_wait_event_intr = am200_wait_event_intr,
-};
-
-static struct platform_device *am200_device;
-
-static int __init am200_init(void)
-{
- int ret;
-
- /* request our platform independent driver */
- request_module("metronomefb");
-
- am200_device = platform_device_alloc("metronomefb", -1);
- if (!am200_device)
- return -ENOMEM;
-
- platform_device_add_data(am200_device, &am200_board,
- sizeof(am200_board));
-
- /* this _add binds metronomefb to am200. metronomefb refcounts am200 */
- ret = platform_device_add(am200_device);
-
- if (ret)
- platform_device_put(am200_device);
-
- return ret;
-}
-
-static void __exit am200_exit(void)
-{
- platform_device_unregister(am200_device);
-}
-
-module_init(am200_init);
-module_exit(am200_exit);
-
-MODULE_DESCRIPTION("board driver for am200 metronome epd kit");
-MODULE_AUTHOR("Jaya Kumar");
-MODULE_LICENSE("GPL");
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